Electronics housing for an E-axis drive and E-axis having an electronics housing

Abstract

An electronic system housing for an E-axle drive of a motor vehicle is disclosed. The electronic system housing comprises a power electronic system received within the electronic system housing for processing voltage in high voltage systems. At least one low voltage component is further received within the electronic system housing.

Claims

1. An electronic system housing for an E-axle drive of a motor vehicle, comprising: a power electronic system disposed within the electronic system housing; and at least one low voltage component mounted directly on the electronic system housing, wherein the low voltage component is one of a motor sensor arrangement, a temperature sensor, a parking brake actuator system and a transmission actuator system, wherein the electronic system housing is arranged adjacent, and connected, to an overall housing, the overall housing being arranged to receive an electric machine, wherein an opening extends through a portion of the electronic system housing and the low voltage component includes a protrusion extending through the opening when mounted on the electronic system housing.

2. The electronic system housing as claimed in claim 1, wherein the low voltage component further comprises at least one interface for an actuator.

3. The electronic system housing as claimed in claim 1, wherein the electronic system housing and the overall housing include interfaces that engage with one another, wherein the interfaces are arranged to be pressed together in a positive-locking manner.

4. The electronic system housing as claimed in claim 1, wherein the electronic system housing is arranged below the overall housing.

5. The electronic system housing as claimed in claim 1, wherein at least one cooling connector is provided on the electronic system housing.

6. The electronic system housing as claimed in claim 1, wherein an intermediate element is arranged between the electronic system housing and the overall housing.

7. The electronic system housing of claim 1, wherein the power electronic system is configured to process voltage in a 48 volt voltage system.

8. The electronic system housing of claim 1, further comprising a seal disposed on an outer surface of the protrusion, wherein the seal is configured to seal the low voltage component to the electronic system housing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present disclosure is explained below with the aid of drawings. In the drawings:

(2) FIG. 1 illustrates a cross sectional view of an electronic system housing that is connected to an overall housing for an E-axle drive in a first exemplary embodiment,

(3) FIG. 2 illustrates a cross sectional view of the electronic system housing and the overall housing, said cross sectional view being axially offset with respect to FIG. 1,

(4) FIG. 3 illustrates a cross sectional view of the electronic system housing and the overall housing, said cross sectional view being axially offset with respect to FIG. 1 and FIG. 2,

(5) FIG. 4 illustrates a perspective view of the electronic system housing that is assembled on the overall housing,

(6) FIG. 5 illustrates an exploded view of the overall housing and the electronic system housing,

(7) FIG. 6 illustrates an exploded view, rotated with respect to FIG. 5, of the overall housing and the electronic system housing,

(8) FIG. 7 illustrates a cross sectional view of the electronic system housing and the overall housing having a common housing in a second exemplary embodiment,

(9) FIG. 8 illustrates a perspective view with a cross section through the electronic system housing and the overall housing,

(10) FIG. 9 illustrates a perspective view of the overall housing,

(11) FIG. 10 illustrates a perspective view of the overall housing and the electronic system housing in the disassembled state of the electronic system components and the control components,

(12) FIG. 11 illustrates a perspective view of the common housing having pre-assembled control components and electronic system components, and

(13) FIG. 12 illustrates a perspective view of the entirely assembled, common housing for the electronic system components and the control components having a cover.

(14) The figures are merely schematic in nature and are solely used to facilitate the understanding of the present disclosure. Identical elements are provided with the same reference numerals. The features of the individual exemplary embodiments are interchangeable.

DETAILED DESCRIPTION

(15) The FIGS. 1 to 3 illustrate cross sectional views of various axial positions of an electronic system housing 1 in which a power electronic system 2 and at least one low voltage component 3 having a low voltage interface 4 for associated actuators are arranged, wherein the electronic system housing 1 is connected to an overall housing 5 in which the E-axle drive is received. Therefore not only the power electronic system 2 is arranged in the electronic system housing 1 but also the low voltage components 3 such as for example a motor sensor system, temperature sensors, a parking brake actuator system or a transmission actuator system are housed in the electronic system housing 1.

(16) As is apparent in FIG. 4, the electronic system housing 1 is arranged immediately adjacent to the overall housing 5 and is connected to said overall housing. The electronic system housing 1 is closed with a cover 6. In this case, the cover 6 is tailored to the contour of the components that are arranged in the electronic system housing. The cover 6 is thus fastened on the electronic system housing 1 in such a manner that said cover may be removed in a simple manner in the event of maintenance or for the disassembly procedure.

(17) The electronic system housing 1 is embodied in such a manner that an intermediate plate is arranged between the control components and the E-axle with the result that the respective components scarcely influence one another in an electromagnetic manner. A connector 7 is provided on the low voltage component 3 and the electronic system housing 1 and a 28 pin signal plug 8 may be placed on said connector in a sealing manner. Further actuators may be connected to this signal plug 8. A current connector is also provided on the electronic system housing 1, said current connector being embodied (cf. FIG. 5) as a “battery line” 9.

(18) The electronic system housing 1 is preferably produced from aluminum. The low voltage module/the low voltage component/the control module 3 is fastened via multiple screws 10 (cf. FIG. 6) on the electronic system housing 1. A rectangular recess 11 is provided in the electronic system housing 1 and in the assembled state a rectangular protrusion 12 of the low voltage component 3 engages into said recess, wherein the two components are sealed with respect to one another via a seal 13.

(19) The FIGS. 7 to 12 illustrate a single-part design of the electronic system housing 1 with the overall housing 5. In the assembled state, the electronic system components such as the power electronic system 2 and the low voltage components 3 are therefore arranged in the lower part of the housing 1,5. In the second exemplary embodiment, the connector 7 for the signal plug 8 is integrated on the outer wall of the common housing 1, 5 on the housing 1, 5 for the electronic system components and the E-axle drive. There is also a connector for the current supply, the battery line 9. The lower part of the housing, therefore the original electronic system housing part 1, is sealed with respect to the environment via the cover 6.

LIST OF REFERENCE NUMERALS

(20) 1 Electronic system housing 2 Power electronic system 3 Low voltage component 4 Low voltage interface 5 Overall housing 6 Cover 7 Connector 8 Signal plug 9 Current connector/“battery line” 10 Screw 11 Recess 12 Protrusion 13 Seal